Printing calculating machine or the like



July 27, 1965 o J. SUNDSTRAND 3,197,133

PRINTING CAIICULATING MACHINE OR THE LIKE Filed April 25, 1962 WITH AMOUNT RECALL MECHANISM 5 Sheets-Sheet 1 Oscar J15 unristmfld July 27, 1965 o. J. SUNDSTRAND PRINTING CALCULATING MACHINE OR THE LIKE WITH AMOUNT RECALL MECHANISM Filed April 25, 1962 Oscar Samdstmnd y 7, 1965 o. J. SUNDSTRAND 3,197,133

PRINTING CALCULATING MACHINE OR THE LIKE WITH AMOUNT RECALL MECHANISM 5 Sheets-Sheet 3 Filed April 25, 1962 mywwmmwwmv g, @A Ow i M fiQQk Mw N2 Ni l 8 mm Q2 3 $8 92 o. J. SUNDSTRAND 3,197,133- PRINTING CALCULATING MACHINE OR THE LIKE July 27, 1965 WITH AMOUNT RECALL MECHANISM 5 Sheets-Sheet 4 Filed April 25, 1962 0mm 08 *3 wow mmm mmm wow wmm

www vmw mmm 0mm Q2 09 +2 vow v WE y 7, 1965 o. J. SUNDSTRAND 3,197,133

PRINTING CALCULATING MACHINE OR THE LIKE WITH AMOUNT RECALL MECHANISM 5 Sheets-Sheet 5 Filed April 25, 1962 Q z uemfor Osmr ISL/strand,

United States Patent 0 PRINTING CALCULATING MACHTNE OR THE LIKE WITH AMQUNT RECALL MECHANISM illsear J. Sundstrand, West Hartford, Conn, assignor to Victor Comptorneter Corporation, Chicago, Ill, a corporation of lllinois Filed Apr. 25, 1962, Ser. No. 1%,074 9 Claims. (El. 235--6t)) The present invention relates to an adding, calculating or similar business machine incorporating improved means to recall amounts for use in subsequent calculations.

By recall is meant a recollection of the amount last calculated in the machine, for example, (a) the amount last entered in the machine as in problems of addition and subtraction, (b) the last total or subtotal taken by the machine, and (c) in problems of multiplication, the last registered product. This recall mechanism Will incidentally indicate the denominational order of the amount registered therein, but in so far as the machine operation is concerned, will provide a complete registration of the last entered amount, the last subtotal or total taken, the amount entered by the non-add key, and the significant digits of the product.

As an incident to the operation of this amount recall I registration, it is possible to use this particular registra tion as a basis for further calculations, as for example, multiplication by repeated addition, when the invention is applied to a calculating machine squaring the recalled amount, or multiplying the recalled amount by a factor introduced by operation of the numeral keys.

As above indicated, the recall mechanism may be used for multiplication by repetitive addition and as a corollary may be used as a correction key. For example, if an amount is inadvertently entered in the keyboard and added, it is necessary merely to operate the amount recall mechanism and the subtract key simultaneously to correct such inadvertence. Conversely, if an amount has been entered on the keyboard and inadvertently subtracted from the total contained in the main or auxiliary register, it may be re-added to correct the error merely by operation of the amount recall mechanism in an additive sense.

The amount recall mechanism of the invention is preferably operated under the control of a key which is normally in position to recall the preceding amount entry, total, subtotal, or product registration. However, such control key for the amount recall mechanism, and the mechanism itself, is preferably such that when the control key is not operated there is no interference with the customary operation of the adding or calculating machine.

The amount recall mechanism may with great advantage be incorporated in calculators of the prior inventions of Thomas O. Mehan Patent No. 2,486,959, dated November 1, 1949, and Oscar l. Sundstrand, Patents Nos. 2,834,542, dated May 13, 1958, and 2,984,412, dated May 16, 1961, but it generally is applicable to a variety of adding and calculating machines, particularly as to the ability of the mechanism automatically to cause repeat operations. When the invention is utilized in calculating machines such as those disclosed in the above enumerated Sundstrand patents, the first recall amount will become a multiplicand, and the second recall amount will become the multiplier.

Ordinarily, adding and calculating machines are proided with a repeat key which requires that the operator depress such key prior to the entry of an amount in order to obtain a repeat operation. With the present invention, the machine is normally conditioned for a repeat operation, and thus the operator can proceed with the repeat operation without any prior actuation of a repeat key.

3,197,133 Patented July 27, 1965 In the above mentioned Sundstrand patents, there is disclosed a total transfer key which permits subsequent arithmetic computations on preselected totals. While in the present invention the recall control key and mechanism may be utilized to accomplish some of the functions of the total transfer key and mechanism, it may be conditioned to operate without prior determination by the operator of the expected following cycle, and thus has functions in addition to those of a total transfer key. Stated differently, the operator is not required to predetermine in advance what the next computing operation the machine is to perform.

In the prior art there is disclosed a number of calculating machines in which an amount may be temporarily stored, but in such machines special manipulation of keys and controls was required in order to enter and read out the amount in the storage register and to transfer it to an active accumulator or register. The operator is required by preliminary operation of controls to determine the entry of an amount into such storage register, and also by preliminary operation of controls to cause the transfer of such temporarily stored amount into another register or accumulator. Thus, as distinguished from such prior art amount storage devices, the present invention relates to an automatic recall mechanism which does not require conscious attention of the operator in order to recall the amount involved in the immediately preceding machine cycle.

From the foregoing it is apparent that a principal object of the invention is to provide an improved calculating machine with means to recall, for use in subsequent calculations, the amount last entered, the subtotal or total, or in the case of multiplication, the product.

A further object is to provide a simplified mechanism for the performance of repeat operations. Thus, an amount entered or accumulated in the machine is normally repeated automatically in an additive sense.

A further object is to provide an amount recall mechanism which additionally functions as a rectifier or aligner for the printing means.

Other objects and advantages Will become apparent from the following description, reference being had to the accompanying drawings, in which:

FIG. 1 is a perspective view of the machine case and the many operable machine controls;

FIG. 2 is a plan view of the major portion of the recall mechanism;

FIG. 3 is a vertical sectional view of the mechanism, taken on the line 33 of FIG. 2;

FIG. 4 is a vertical sectional view of the mechanism, taken on the line 44 of FIG. 2;

FIG. 5 is a fragmentary vertical sectional view, taken on the line 55 of FIG. 2;

FIG. 6 is a vertical sectional view, taken on the line 6-6 of FIG. 2, showing mainly the mechanism for lcausing engagement and disengagement of the accumuator;

FIG. 7 is a fragmentary vertical sectional view, taken on the line 7-7 of FIG. 2;

FIG. 8 is a fragmentary vertical sectional view on an enlarged scale, taken on the line 88 of FIG. 2; and

FIG. 9 is an expanded View of the recall mechanism and some of the actuating means therefor.

As shown in FIG. 1, the machine comprises a more or less conventional case 19 provided with the usual numeral keys 12, a column indicator 14, a decimal indicator 16, and a knurled twirler knob 18 for manually advancing or retracting the paper tape.

The control keys include a motor bar add-total control 20, a subtract key 22, a correction key 24, a combination nonadd and subtotal key 26, a preselect total or subtotal key 28, a stop button 34), a memory constant key 32,

aromas a selective multiplyadtbsu tract-divide key 34, and a recall button 36.

The more general features of the calculating machine are shown in section in MG. '7, wherein the numeral keys 12, when operated, depress stop pins of a customary stop pin carriage ll) mounted as usual for transverse movement relative to the lower ends of the stems 4-2 of the numeral keys 12.. The amount entered in the machine as represented by depressed stop pins 38, is picked up by actuators 44 through engagement of their lugs it? with such depressed stop pins. The actuators 4d are provided with racks 48 and 49. The racks 43 respectively engage with gear segments 55 mounted for limited pivotal movement on hubs 52, being normally moved clockwise by tension springs 54 connected between ears 56 on the segments i and ears 5% on segments as. The limited movement between the gear segments Stl and their associated sectors 60 is provided to effect transfers or carryovers whenever the associated transfer pawl 62 is tripped by engagement of its nose at with the tens transfer tooth on either of the two intermeshed associated. accumulator pinions 66 or 68, depending on whether the operation is one of addition or subtraction. The transfer mechanism, the accumulator engaging and disengaging mechanism, and the accumulator shifting mechanism from adding to subtracting position, are Well known in the prior art.

Also as known, the rack 49 is in mesh with a segmental gear 7i) which forms part of a type sector '7 2 carrying usual type 74 cooperable with the usual inking ribbon, paper tape, and platen 76.

In addition to the usual function of the type sectors 72, the type sectors have toothed segmental gears 7% which normally were used only for rectification or alignment of the type sectors. However, in the present invention, as more fully disclosed in FIGS. 8 and 9, these segmental gears '78 also operate a recall register till comprising pinions 82. The pinicns 82 are mounted for rotation on a shaft 34 which has a keyway as into which internally directed lugs d8 of restoring arms 90 project. Also asseinbled on the shaft 84 are bell crank shaped stop arms 92 which are apertured to embrace the shaft 84 and also apertured to receive a supporting shaft 94. The ends of the arms 92 are forked to provide notches 96 engageable with a rod 98. The stud 9d and rod 93 are mounted in a frame structure comprising side frame plates lltltl and till, which frame is pivotal about a pair of inwardly projecting shoulder studs 1% and 1634 secured in side frame plates 1% and 1%, so that the frame may pivot about the studs to bring the pinions 32 into and out of engagement with the segment gears '78.

Each of the mutilated pinions 82 has eleven teeth and one of these teeth has a sidewardly extending restoring stop lug lit) which during amount entering portions of the cycle engages the restoring arm 90, swinging these arms counterclockwise (FIGS. 8 and 9), thereby applying a torque to a closely wound spring 1712, the ends of which engage respectively around a stud tildfixed to the side frame of the machine 116 and around the shaft 84 with which it is in tight frictional engagement. The spring 112 is wound in such direction that as the shaft 84 is moved counterclockwise (FIGS. 8 and 9) the spring more tightly grips the end of the shaft 84 and the stud 1M, and thus the spring is wound up torsionally without slippage. Thus, as will later appear, when the shaft 84 is released for restoration of the pinions 82, the spring will drive the pinions 82 through the shaft 84, the lugs 83 and restoring arms 9%) until the toothed lugs lit engage the forward edges of the downwardly extending arms of the bell cranks 92.

To cause the entry of an amount into the recall register 80, it is necesary that the pinions $2 be in engagement with the segmental gears 78 during the return stroke of the machine (considering the return stroke as in a hand operated adding machine) and the pinions should normally be retained in such engagement until the following cycle.

in general, the machine is driven by a motor 1E3 through one revolution clutch mechanism 12% (which may be of the type shown in the patent to Woodier No. 2,995,- 227), which through a link 1223 connected between the output of the one revolution clutch mechanism 12% and an arm T24 secured to the main shaft 126 of the machine, rocks the main shaft first clockwise through an angle of approximately and then counterclockwise to its home position (FIG. 4).

Upon the forward clockwise rocking motion of the main shaft 126, a plate cam 123 (FIG. 3) attached to the main shaft has its outward end portion engage a roller 12% rotatable upon a stud 132 fixed to a plate 134 pivoted on a shaft 136, which also serves as a pivotal support for the type segments [2. The plate 134 is thereby swung coun terclockwise, whereby a notch 138 which normally embraces a pin in the side wall lldtl swings the recall register 8th clockwise about pivots NM, 192, bringing the pinions 32 into engagement with the segmental gears 78. (in PEG. 3 the plate cam 12% is shown in normal position, whereas the roller 13% and mechanism operated thereby is similarly shown in normal position, but with the pinions 82 in engaged position.)

However, at the start of a machine cycle, a plate cam 142 (FlG. 6) is rotated in the counterclockwise direction, thereby swinging the stud I144 in the'same direction to lift link 146 in the clockwise direction about pivot pin 14S (dotted line), which in turn is connected to ball 15%. The bail is swung in the clockwise direction (FIG. 6) about the pivot 14% and in the counterclockwise direction (FIG. 3) about pivot 152, which is coaxial with the pivot 14?. At its left end the bail carries an outwardly extending lug 15 which is moved rearwardly to engage an abutment 156 on a slide 158, the opposite end of which is pivotally connected to a pin 1655 which is carried by the lock link 162, which in turn is pivoted at ill l. The lock link has a reentrant portion defining a shoulder lied on which rides a stud 16d which is riveted to the arm 13d, holding the arm 134 and the recall register in normal engaged position, as shown in FIG. 3.

At the start of the cycle, however, when the lug 15 5 moves the abutment 156 and slide 158 leftward (FIG. 3) the abutment moves out from under the stud 166, permitting the roller llfiil to drop into the path of the plate cam 128 under the force of spring 168 connected between an arm 170 and a suitable anchor at its opposite end. During the latter part of the forward stroke of the machine, the plate cam 128 lifts the roller 1% and the stud res thereby to clear the stud 166 above the shoulder 164, permitting spring 172 to restore the slide 153 forwardly to the full line position of FTG. 3, and pulls shoulder 16-! beneath the pin 1645, holding the pinions $2 in engaged position.

When it is desired to use the recall mechanism and register in a following cycle, such as a repeat operation, the recall button as is depressed. This button is attached to a key stem slide 174 suitably mounted for generally vertical movement on appropriate pin and slot guiding means. A latch 176 is pivotally attached to the key stem 1'74 and has a notch 178 normally embracing a stud 180, the pawl being suitably biased by a tension spring 132 to maintain this position. The stud 18% projects sidewardly from a lever 184 pivoted on a stud rss. The rearward end of the lever has a stud lt b engaging in an open end slot formed in an arm 1% pivoted on a shaft 192. When the key button 36 is depressed, this lever 19b is swung counterclockwise, whereby a sidewardly extending stud 194 thereon, normally resting in an elongated open end slot 196 formed in the forwardly projecting end portion of the slide lthl, swings the latter clockwise (FIG. 3) to bring its abutment 1% below the lug 154 so that the operation of the bail will be ineitee enemas v.9 tive to disengage the recall register 8t) from the gear segments 78.

The counterclockwise swinging movement of the arm 190 also moves a link 197 forwardly, causing a hook 193 at the rearward end of the latter to engage a pin 2% on the operating plate of the one revolution clutch mechanism 12h. This plate has a forwardly extending arm which is pin and slot connected to an arm 202 which extends across to the right-hand side of the machine in the manner shown in the above mentioned prior Patent No. 2,984,412, which in FIGS. 76 and 77 shows a shaft 523 and a lever 52% secured thereto, which through an intermediate mechanical train operates a motor control switch 176.

Thus, under these circumstances, depression of the recall button 36 causes initiation of a machine cycle which is in all respects the same as an ordinary repeat cycle.

Upon depression of the recall button 36 and the clockwise swin ing motion of the lever 184, a sidewardly extending lug 2% of the latter latches beneath the rearwardly extending toe 206 of a suitably mounted latching pawl 208 holding the lever 134 in operated position.

Near the end of the forward stroke of the machine, a roller 210 mounted on a plate 212 secured to the main shaft 126, engages in the arcuate surface 214 of a latch release slide 216. This slide is suitably guided by pin and slot connections so as to be capable of longitudinal movement only. The forward end of the slide 216 has a sidewardly bent portion at its forward end 218 (FIG. 2) which has downwardly bent ears 228 and 222. The car 220 is adapted to engage a stud 224 which projects sidewardly from the latching pawl 26% and move the latter forwardly (to the right, FIGS. 4 and 5), thus to disengage the lug 204 from beneath the toe 2% of the latch 2%, and also through a stud 226 attached thereto to engage the rearward edge of the pawl 1'76, swinging the latter clockwise (FIG. 4) to disengage this pawl from the stud 180. The lever 134 is thus released to swing counterclockwise to its normal position.

By means similar to those shown in the previously mentioned Sundstrand Patent No. 2,834,542 (FIGS. 51 and 52) a bell crank 228 is swung counterclockwise (FIG. 4) by a suitably anchored spring 230 upon the movement of the pin carriage one space to the left as in the case with the entry of the first digit of an amount. The upper arm of the bell crank 228 is connected by a pin or stud 232 with a slide 234. This slide has a downwardly and forwardly projecting portion including a stop 236 which is adapted to underlie the lug 204 on the lever 184 so as to block the lever 184 and thus lock the recall key button 36 against depression during operation of the numeral keys 12.

It will be recalled that when the recall key 36 is depressed, the rearward end of the lever 134 is raised and through its stud 188 engaging in a slot in the arm 190, rotates the latter counterclockwise. Suitably connected to the arm 1% by means of the shaft 192 is a second arm 238 which has an open end slot connected with a pin on an upwardly extending arm of a lever 24th. The lower arm of the lever 244) is offset and is provided with a sidewardly extending lug 242 which lies in front of an upwardly extending arm of a bell crank 244. The lower and generally horizontally and forwardly extending arm of this bell crank is provided with an offset so that extending part 246 is normally positioned beneath the forward edge of a swingable actuator lock plate 24% (sometimes referred to as a trap door). Thus, through the kinematic train just described, the lock plate 243 is raised when the recall button 36 is depressed, so that the actuators 44 will be free to move rearwardly past this plate and thus be arrested by the recall register wheels 82.

As previously indicated, the recall register wheels 82 are returned to zero position by the engagement of their sidewardly extending tooth lugs llltl with the forward edge of the stop arms 92, in the manner best shown in FIG. 8. In the course of such rearward movement of the actuator and racks in restoring the recall register wheels 82 to zero position, the amount formerly represented by the position of these register wheels is added or subtracted into the main accumulator and printed on the paper record tape.

In the drawings and specification, the invention is shown and described as applied to a calculating machine as distinguished from an adding machine, and as previously indicated, such calculating machine is shown in the above mentioned Sundstrand patents. However, it is desirable to mention that in applying the invention to this calculating machine, the cycles of operation are controlled by a so caled cam shaft 254) which carries a number of cams such as the cams 252 and 254 shown in FIG. 3, and the shaft 25% is rotated ratchetwise by means of a reciprocable pawl 256 (FIG. 4) which engages the teeth of a ratchet wheel 252? secured to the shaft. This pawl 256 is reciprocated upon each cycle of operation of the machine, but does not necessarily engage the ratchet wheel on each cycle, being elevated so as not to contact the wheel during certain operating cycles.

It has previously been noted that depression of the recall control button 36 will cause elevation of the stop plate 2 8 (PEG. 3) during the first and second operating cycles. During the third cycle, the cam 254 will have been rotated clockwise to such position that its higher edge portion will have engaged the toe 260 on the bell crank lever 244 to swing the latter counterclockwise sufficiently to cause its forward end portion 246 to engage the depending forward edge of the stop plate 248, thereby to permit the actuators 4-4 to move rearwardly during subsequent cycles until arrested by the amount which has been entered in the multiplying register. (In the aforesaid patents, this is termed the B register.)

One of the advantageous functions of the recall register mechanism is that the register wheels 82 when brought into mesh with the segmental gears 73, align or rectify the latter so that straight line printing of the amount is obtained.

In FIGS. 8 and 9 there is shown a toothed member 262, one mounted on each of the printing sectors 72, which is resiliently held to the left (FIG. 8) until the ends of the elongated arcuate slots therein engage studs 264. This extension of the gear segment by one tooth, due to the member 262, permits the printing sectors to move an additional tooth space in the performance of problems of division wherein the actuators 44 are required to move an additional step in the advantageous method of performing division problems as fully described in the aforesaid prior Patent No. 2,834,542 (column 31, line 3, to column 37, line 41).

When the recall key button 36 is depressed, as previously indicated, the stud 183 (FIG. 4) at the rearward end of the lever 18d moves an arm 1% counterclockwise (FIG. 4) so that a roller 266 engages a diagonal cam surface at the end of an arm 268 which is pivoted at 270. The lever 26% has a downwardly extending arm 272 which carries a stud 274 which lie beneath a portion of the drive pawl 256 so as to permit the latter to engage the teeth of the ratchet wheel 2523. The lever 268 also has a forwardly extending arm 276 which engages the upper end of a pivotally mounted stop element 278 which has a stop edge normally lying rearwardly of a projection 232 on a multiplicand calculating slide 284. The latter is biased to move rearwardly by a spring 286 and is limited in its rearward motion by engagement of a feeler finger 238 with a notch in a earn 296. The lide 284 is driven forwardly by a suitable cam in the one revolution clutch mechanism engaging a rearwardly extending nose 292- at the rearward end of the slide.

When the member 278 is swung counterclockwise by spring 2%, its stop edge 280 is raised above the upward projection 282 of the slide 284 and the latter is free, as

described, to move rearwardly. This rearward movement of the slide 284 engages the proiection 282 with a rod 2% of the so called B register of the machine to engage the B register with the actuating racks and thus enter the recalled amount into the B register as the multiplicand in a problem of multiplication. Upon the following cycle of operation, the cam 2% will have been rotated clockwise (FIG. 4) through a sur'hcient angle so that the feeler 233 of the slide is no longer in alignment with the notch in the cam, and thus rearward movement of the multiplicand calculating slide is prevented. The multipler may then be entered into the so called A register from the number keys '12 in this following cycle, and the problem Will be completed. Should it be desired to square the recalled amount, the recall button is depr ssed a second time (instead of the number keys) and a multiplier calculating slide, similar to the slide 23d, will enter the recalled amount into the A register and the problem will be con pleted. These slides and their functions are disclosed in the aforesaid Patent No. 2,834,542, F163. 25 through 32.

While a preferred embodiment of a recall mechanism for calculating, adding, or similar machines constituting this invention has been shown and described, it will be apparent that numerous modifications and variations thereof may be made Without departing from the underlying principles of the invention. It is therefore desired, by the following claims, to include within the scope of the invention all such variations and modifications by which substantially the results of this invention may be obtained through the use of substantially the same or equivalent means.

What is claimed as new and desired to be secured by United States Letters Patent is:

1. In a calculating machine having amount setup means and toothed actuators movable distances controlled by the amount setup means, and at least one accumulator for receiving the amounts set up in the setup means and operated by the toothed actuators, the combination comprising, a recall register cooperable with the actuators and movable thereby to set up in said register an amount represented by the extent of movement of the actuators, said recall register having a stop position, means to bring said recall register when in stop position into operational engagement with the actuators upon each operating cycle of the calculating machine so as to enter into said recall register the last amount added, subtracted, or taken as a subtotal or total from the accumulator, and the actuators including lost motion means for engagement with said recall register to permit the actuators to be moved beyond their stop positions in the course of performance of a problem in division.

2. In a printing calculating machine or the like having amount setup means and toothed actuators movable distances controlled by the amount setup means, segmental gears each carrying a type segment meshed with the toothed actuators, and at least one accumulator for receiving the amounts set up in the setup means and operated by the toothed actuators, the combination comprising, a recall register cooperable with the actuators and movable thereby to set up in said register an amount represented by the extent of movement of the actuators, said recall register including pinions freely rotatably mounted on a shaft, pinion stop means, means keyed to said shaft and engagcable with said pinions and adapted to move said pinions to their stop positions against said stop means, means connected to said shaft for biasing said pinions against said stop means, and means to bring said recall register into operational engagement with the actuators by engagement of said pinions With the segmental gears slightly before the midpoint of each operating cycle of the machine and after the actuators have finished their amount entry movements so as to enter into said recall register the last amount added, subtracted, or taken as a subtotal or total from the accumulator, whereby said recall register with said pinions in their stop positions aligns the segmental gears with their type segments for a printing operation.

In a printing calculating machine or the like having amount setup means and toothed actuators movable distances controlled by the amount setup means, segmental gears each carrying a type segment meshed with the toothed actuators, and at least one accumulator for receiv ing the amounts set up in the setup means and operated by the toothed actuators, the combination comprising, a recall register cooperable with the actuators and movable thereby to set up in said register an amount represented by the extent or" movement of the actuators, said recall register including pinions freely rotatably mounted on a shaft, pinion stop means, means keyed to said shaft and adapted to move said pinions to their stop positions against said stop means, means connected to said shaft for biasing said pinions against said stop means, means to bring said recall register into operational engagement with the actuators by engagement of said pinions with the segmental gears when said pinions are in their stop positions upon each operating cycle of the machine so as to enter into said recall register the last amount added, subtracted, or taken as a subtotal or total from the accumulator, and means to disengage said pinions from said segmental gears during entry of an amount into the machine by the amount setup means, whereby said biasing means will restore said pinions to their stop positions.

4. In a printing calculating machine or the like having amount setup means and toothed actuators movable distances controlled by the amount setup means, segmental gears each carrying a type segment meshed with the toothed actuators, and at least one accumulator for receiving the amounts set up in the setup means and operated by the toothed actuators, the combination comprising, a recall register cooperable with the actuators and movable thereby to set up in said register an amount represented by the extent of movement of the actuators, said recall register including pinions freely rotatably mounted on a shaft, means to bring said recall register into operational engagement with the actuators by engagement of each of said pinions with a segmental gear upon each operating cycle of the machine so as to enter into said recall register the last amount added, subtracted, or taken as a subtotal or total from the accumulator, restoring means keyed to said shaft and engageable with said pinions to move them to their stop positions, coiled torsion spring means having a fixed end and its other end connected to said shaft for biasing said shaft in the direction to move said pinions to their stop position, means to maintain said pinions in engagement with their respective segmental gears throughout the return stroke of the machine, and means to disengage said pinions from said segmental gears upon entry of an amount into the machine by the amount setup means, whereby said biasing means will restore said pinions to their stop positions.

In a printing calculating machine or the like having amount setup means, toothed actuators movable distances controlled by the amount setup means, segmental gears each carrying a type sector pivotally mounted on a shaft and meshed with the toothed actuators, an accumulator for receiving the amounts set up in the setup means and operated by the toothed actuators, and an oscillatable main shaft, the combination comprising, a recall register engageable with the segmental gears and movable thereby to set up in said register an amount represented by the extent of movement of the actuators, said recall register including a frame pivotally mounted on the shaft for the segmental gears, a shaft carried by said frame, a plurality of pinions freely mounted on said last named shaft, each pinion having a laterally offset tooth, a restoring arm for each pinion mounted on and keyed to said last named shaft and adapted to engage said offset tooth, and a stop arm for each pinion carried by said frame and against Which said restoring arm is adapted to bring said offset tooth when the recall register is in zero position, a torsion spring having one end anchored and the other end frictionally engaged With said recall register shaft urging said shaft in the direction to bring said restoring arms against said offset teeth and the latter against said stop arms, and linkage means connected to said register frame and adapted to be operated from the main shaft at one point in its cycle to engage said pinions with the segmental gears so that the last amount added, subtracted, or taken as a total or subtotal from the accumulator is entered into the recall register during a subsequent portion of the main shaft cycle.

6. In a printing calculating machine or the like having amount setup means, toothed actuators movable distances controlled by the amount setup means, segmental gears each carrying a type sector pivotally mounted on a shaft and meshed with the toothed actuators, an accumulator for receiving the amounts set up in the setup means and operated by the toothed actuators, and an oscillatable main shaft, the combination comprising, a recall register engageable with the segmental gears and movable thereby to set up in said register an amount represented by the extent of movement of the actuators, said recall register including a frame pivotally mounted on the shaft for the segmental gears, a shaft carried by said frame, a plurality of pinions freely mounted on said last named shaft, each pinion having a laterally offset tooth, a restoring arm for each pinion mounted on and keyed to said last named shaft and adapted to engage said offset tooth, and a stop arm for each pinion carried by said frame and against which said restoring arm is adapted to bring said ofiset tooth when the recall register is in zero position, a biasing spring having one end anchored and the other end con nected to said recall register shaft urging said shaft in the direction to bring said restoring arms against said offset teeth and the latter against said stop arms, linkage means connected to said register frame and adapted to be operated from the main shaft at one point in its cycle to engage said pinions with the segmental gears so that the last amount added, subtracted, or taken as a total or subtotal from the accumulator is entered into the recall reg ister during a subsequent portion of the main shaft cycle, a recall key, and other linkage means operated by said key and connected to said first named linkage means to move the latter so that said recall register is retained in engagement with said segmental gears during the first half of the main shaft cycle so that said recall register controls the distances moved by the actuators and the amount entered into the accumulator.

7. In a printing calculating machine or the like having amount setup means, toothed actuators movable distances controlled by the amount setup means, pivotally mounted segmental gears each carrying a type sector meshed with the toothed actuators, at least one accumulator for receiving the amounts set up in the setup means and operated by the toothed actuators, and an oscillatable main shaft, the combination comprising, a recall register engageable with the segmental gears and movable thereby to set up in said register an amount represented by the extent of movement of the actuators, said recall register including a pivotally mounted frame, a shaft carried by said frame, a plurality of pinions freely mounted on said last named shaft, each pinion having a laterally offset tooth, a restorin arm for each pinion keyed to said last named shaft and adapted to engage said offset tooth, and a stop arm for each pinion carried by said frame and against which said restoring arm is adapted to bring said offset tooth when the recall register is in zero position, a torsion spring having one end anchored and the other end frictionally engaged with said recall register shaft urging said shaft in the direction to bring said restoring arms against said offset teeth and the latter against said stop arms, first linkage means connected to said register frame and adapted to be operated from the main shaft slightly before the end of the first half of its cycle to engage said pinions with the segmental gears so that the last amount it) added, subtracted, or taken as a total or subtotal from the accumulator is entered into the recall register during the last half of the cycle of the main shaft, said linkage means including means locking said recall register in engagement with the segmental gears throughout the last half of the cycle of the main shaft, and second linkage means operated by the main shaft at the beginning of the cycle of the main shaft to release said recall register locking means and to disengage said recall register from the segmental gears whereby said torsion spring will restore said pinions to their zero position against said stop arms.

8. In a printing calculating machine or the like having amount setup means, toothed actuators movable distances controlled by the amount setup means, pivotally mounted segmental gears each carrying a type sector meshed with the toothed actuators, an accumulator for receiving the amounts set up in the setup means and operated by the toothed actuators, and an oscillatable main shaft, the combination comprising, a recall register engageable with the segmental gears and movable thereby to set up in said register an amount represented by the extent of movement of the actuators, said recall register including a pivotally mounted frame, a shaft carried by said frame, a plurality of pinions freely mounted on said last named shaft, each pinion having a laterally oifset tooth, a restoring arm for each pinion keyed to said last named shaft and adapted to engage said offset tooth, and a stop arm for each pinion carried by said frame and against which said restoring arm is adapted to bring said offset tooth when the recall register is in zero position, a biasing spring having an anchored end and the other end connected to said recall register shaft urging said shaft in the direction to bring said restoring arms against said offset teeth and the latter against said stop arms, first linkage means connected to said register frame and adapted to be operated from the main shaft slightly before the midpoint of its cycle to engage said pinions with the segmental gears so that the last amount added, subtracted, or taken as a total or subtotal from the accumulator is entered into the recall register during the last half of the cycle of the main shaft, said linkage means including means locking said recall register in engagement with the segmental gears throughout the last half of the cycle of the main shaft, second linkage means operated by the main shaft at the beginning of the cycle of the main shaft to release said recall register locking means and to disengage said recall register from the segmental gears whereby said biasing spring will restore said pinions to their zero position, a recall key, and third linkage means operated by said key and connected to said first linkage means to move the latter so that said locking means is retained in locking position during the first half of the main shaft cycle so that said recall register controls the distances moved by the actuators and the amount entered into the accumulator.

9. In a printing calculating machine or the like having amount setup means, toothed actuators movable distances controlled by the amount setup means, segmental gears each carrying a type sector pivotally mounted on a shaft and meshed with the toothed actuators, at least one accumulator for receiving the amounts set up in the setup means and operated by the toothed actuators, and an oscillatable powered main shaft, the combination comprising, a recall register engageable with the segmental gears and movable thereby to setup in said register an amount represented by the extent of movement of the actuators, said recall register including a frame pivotally mounted on the shaft for the segmental gears, a shaft carried by said frame, a plurality of pinions freely mounted on said last named shaft, each pinion having a laterally offset tooth, a restoring arm for each pinion keyed to said last named shaft and adapted to engage said offset tooth, and a stop arm for each pinion carried by said frame and against which said restoring arm is adapted to bring said offset tooth when the recall register is in zero position,

l. l a torsion spring having one end anchored and the other end frictionally engaged With said recall register shaft urging said shaft in the direction to bring said restoring arms against said oifset teeth and the latter against said stop arms, first linkage means connected to said register frame and adapted to be operated to engage said pinions With the segmental gears, cam means driven by the main shaft and adapted to operate said linkage means slightly before the midpoint in the cycle of the main shaft so that the last amount added, subtracted, or taken as a total or subtotal from the accumulator is entered into the recall register during the last half of the cycle of the main shaft; said linkage means including means locking said recall register in engagement with the segmental gears throughout the last half of the cycle of the main shaft, second linkage means operated by the main shaft at the beginning of the cycle of the main shaft to release said recall register locking means and to disengage said recall register from the segmental gears whereby said torsion spring will restore said pinions to their zero position, a recall key, third linkage means operated by said key and connected to said first linkage means to move the latter so that said locking means is retained in locking position whereby said recall register controls the distances moved by the actuators and the amount entered into the accumulator, and means operated by said third linkage means to initiate cycling of the main shaft and to prevent operation of the amount set up means.

References Cited by the Examiner UNITED STATES PATENTS LEO SMILOW, Primary Examiner.

ABRAHAM BERLIN, Examiner. 

9. IN A PRINTING CALCULATING MACHINE OR THE LIKE HAVING AMOUNT SETUP MEANS, TOOTHED ACTUATORS MOVABLE DISTANCES CONTROLLED BY THE AMOUNT SETUP MEANS, SEGMENTAL GEARS EACH CARRYING A TYPE SECTOR PIVOTALLY MOUNTED ON A SHAFT AND MESHED WITH THE TOOTHED ACTUATORS, AT LEAST ONE ACCUMULATOR FOR RECEIVING THE AMOUNTS SET UP IN THE SETUP MEANS AND OPERATED BY THE TOOTHED ACTUATORS, AND AN OSCILLATABLE POWERED MAIN SHAFT, THE COMBINATION COMPRISING, A RECALL REGISTER ENGAGEABLE WITH THE SEGMENTAL GEARS AND MOVABLE THEREBY TO SET UP IN SAID REGISTER AN AMOUNT REPRESENTED BY THE EXTENT OF MOVEMENT OF THE ACTUATORS, SAID REGISTER INCLUDING A FRAME PIVOTALLY MOUNTED ON THE SHAFT FOR THE SEGMENTAL GEARS, A SHAFT CARRIED BY SAID FRAME, A PLURALITY OF PINIONS FREELY MOUNTED ON SAID LAST NAMED SHAFT, EACH PINION HAVING A LATERALLY OFFSET TOOTH, A RESTORING ARM FOR EACH PINION KEY TO SAID LAST NAMED SHAFT AND ADAPTED TO ENGAGE SAID OFFSET TOOTH, AND A STOP ARM FOR EACH PINION CARRIED BY SAID FRAME AND AGAINST WHICH SAID RESTORING ARM IS ADAPTED TO BRING SAID OFFSET TOOTH WHEN RECALL REGISTER IS IN ZERO POSITION, A TORSION SPRING HAVING ONE END ANCHORED AND THE OTHER END FRICTIONALLY ENGAGED WITH SAID RECALL REGISTER SHAFT URGING SAID SHAFT IN THE DIRECTION TO BRING SAID RESTORING ARMS AGAINST SAID OFFSET TEETH AND THE LATTER AGAINST SAID FRAME AND ADAPTED TO BE OPERATED TO ENGAGE SAID PINIONS WITH THE SEGMENTAL GEARS, CAM MEANS DRIVEN BY THE MAIN STOP ARMS, FIRST LINKAGE MEANS CONNECTED TO SAID REGISTER SHAFT AND ADAPTED TO OPERATE SAID LINKAGE MEANS SLIGHTLY BEFORE THE MIDPOINT IN THE CYCLE OF THE MAIN SHAFT SO THAT THE LAST AMOUNT ADDED, SUBTRACTED OR TAKEN AS A TOTAL OR SUBTOTAL FORM THE ACCUMULATOR IS ENTERED INTO THE RECALL REGISTER DURING THE LAST HALF OF THE CYCLE OF THE MAIN SHAFT, SAID LINKAGE MEANS INCLUDING MEANS LOCKING SAID RECALL REGISTER IN ENGAGEMENT WITH THE SEGMENTAL GEARS THROUGHOUT THE LAST HALF OF THE CYCLE OF THE MAIN SHAFT, SECOND LINKAGE MEANS OPERATED BY THE MAIN SHAFT AT THE BEGINNING OF THE CYCLE OF THE MAIN SHAFT TO RELEASE SAID RECALL REGISTER LOCKING MEANS AND TO DISENGAGE SAID RECALL REGISTER FROM THE SEGMENTAL GEARS WHEREBY SAID TORSION SPRING WILL RESTOR SAID PINIONS TO THEIR ZERO POSITION, A RECALL KEY, THIRD LINKAGE MEANS OPERATED BY SAID KEY AND CONNECTED TO SAID FIRST LINKAGE MEANS TO MOVE THE LATTER SO THAT SAID LOCKING MEANS IS RETAINED IN LOCKING POSITION WHEREBY SAID RECALL REGISTER CONTROLS THE DISTANCES MOVED BY THE ACTUATORS AND THE AMOUNT ENTERED INTO THE ACCUMULATOR, AND MEANS OPERATED BY SAID THIRD LINKAGE MEANS TO INITIATE CYCLING OF THE MAIN SHAFT AND TO PREVENT OPERATION OF THE AMOUNT SET UP MEANS. 